<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
      "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html   xmlns="http://www.w3.org/1999/xhtml"
        xmlns:h="http://java.sun.com/jsf/html"
        xmlns:rich="http://richfaces.org/rich"
        xmlns:a4j="http://richfaces.org/a4j"
        xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
    
    <h:head></h:head>
    <h:body>
        <h:form>
            <a4j:commandButton value="Enable" render="testplace" action="#{impressumService.putEnable()}"/>
            <a4j:commandButton value="Disable" render="testplace" action="#{impressumService.putDisable()}"/>
        </h:form>
        
        <h:outputText id="testplace" value="Dies ist der Impressum Bereich!" rendered="#{impressumService.testVisible}"/>
    </h:body>
</html>